Please answer ASAP. Thank you! a. Develop the estimated regression equation that relates annual maintenance expense (in hundreds of dollars) to weekly usage hours (to3 decimals).Expense =+Weekly Usageb. Test the significance of the relationship in part (a) at a 0.05 level of significance.Compute the value of the F test statistic (to 2 decimals).The p value is - Select your answer -What is your conclusion?- Select your answer -c. Jensen expects the new machine to be used 30 hours per week. What is the expected annual maintenance expense in hundreds ofdollars (to 2 decimals)?$hundredDevelop a 95% prediction interval for the company's annual maintenance expense for this machine (to 2 decimals).($hundred, $hundred)d. If the maintenance contract costs $3000 per year, would you recommend purchasing the contract for the new machine in part (c)? Whyor why not?- Select your answer - Jensen Tire & Auto is in the process of deciding whether to purchase a maintenance contract for its new computer wheel alignment andbalancing machine. Managers feel that maintenance expense should be related to usage, and they collected the following information onweekly usage (hours) and annual maintenance expense (in hundreds of dollars).Weekly Usage(hours)16132331352027344341AnnualMaintenance Expense24293744543840465947

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Answered: a. Develop the estimated regression…

Mathematics For Machine Technology

8th Edition

ISBN:9781337798310

Author:Peterson, John.

Publisher:Peterson, John.

Chapter29: Tolerance, Clearance, And Interference

Section: Chapter Questions

Problem 15A

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Johnson Filtration, Inc. provides maintenance service for water-filtration systems. Suppose that in addition to information on the number of months since the machine was serviced and whether a mechanical or an electrical repair was necessary, the managers obtained a list showing which repairperson performed the service. The revised data follow. Click on the datafile logo to reference the data. DATA file Repair Time Months Since in Hours Last Service Type of Repair Repairperson 2.9 Electrical Dave Newton 3.0 Mechanical Dave Newton 4.8 8. Electrical Bob Jones 1.8 Mechanical Dave Newton 2.9 Electrical Dave Newton 4.9 Electrical Bob Jones 4.2 6. Mechanical Bob Jones 4.8 8. Mechanical Bob Jones 4.4 4. Electrical Bob Jones 4.5 Electrical Dave Newton a. Ignore for now the months since the last maintenance service (1 ) and the repairperson who performed the service. Develop the estimated simpe linear regression equation to predict the repair time (y) given the type of repair (2 ). Recall that…
I need assistance with parts a, b, and c. Because of high tuition costs at state and private universities, enrollments at community colleges have increased dramatically in recent years. The following data show the enrollment (in thousands) for Jefferson Community College for the nine most recent years. Click on the datafile logo to reference the data. Year Period (t) Enrollment(1,000s) 2001 1 6.5 2002 2 8.1 2003 3 8.4 2004 4 10.2 2005 5 12.5 2006 6 13.3 2007 7 13.7 2008 8 17.2 2009 9 18.1 A. Choose the correct time series plot. What type of pattern exists in the data? Positive trend pattern or negative trend pattern B. Use simple linear regression analysis to find the parameters for the line that minimizes MSE for this time series. If required, round your answers to two decimal places. y-intercept, b0 = Slope, b1 = MSE= C. What is the forecast for year 10? Do not round your interim computations and round your final answer to two decimal places.
Jensen Tire & Auto is deciding whether to purchase a maintenance contract for its newcomputer wheel alignment and balancing machine. Managers feel that maintenance expenseshould be related to usage, and they collected the following information on weeklyusage (hours) and annual maintenance expense (in hundreds of dollars). a. Develop a scatter chart with weekly usage hours as the independent variable. Whatdoes the scatter chart indicate about the relationship between weekly usage and annualmaintenance expense?b. Use the data to develop an estimated regression equation that could be used to predictthe annual maintenance expense for a given number of hours of weekly usage. Whatis the estimated regression model? c. Test whether each of the regression parameters b0 and b1 is equal to zero at a 0.05level of significance. What are the correct interpretations of the estimated regressionparameters? Are these interpretations reasonable?d. How much of the variation in the sample values of…
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